ASP.NET MVC上传图片并把图片保存在本地

一、上传单张图片

前端

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <div>
        @using (Html.BeginForm("addFile", "First", FormMethod.Post, new { enctype = "multipart/form-data" }))
        {
            <input type="file" name="myFile" />
            <input type="submit" />
        }
    </div>
</body>
</html>

后台

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace 上传图片并把图片保存在本地.Controllers
{
    public class FirstController : Controller
    {
        public static string toImagePath = @"D:";

        // GET: First
        public ActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public ActionResult addFile()
        {
            try
            {
                HttpPostedFileBase file = Request.Files["myFile"];

                string FileName = DateTime.Now.ToString("yyyyMMddhhmmss");

                if (file.ContentType == "image/jpeg" || file.ContentType == "image/png")
                {
                    if (int.Parse(file.ContentLength.ToString()) > ((1024 * 1024) * 5))
                    {
                        //图片大小不能大于5M;
                        return Redirect("/First/Index");
                    }
                    else
                    {
                        //图片存储路径
                        file.SaveAs(toImagePath + FileName + ".jpg");
                    }
                }
                return Redirect("/First/Index");
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}

二、上传多张图片

前端

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <div>
        @using (Html.BeginForm("addFile", "First", FormMethod.Post, new { enctype = "multipart/form-data" }))
        {
            <input type="file" multiple="multiple" name="myFile" />
            <input type="submit" />
        }
    </div>
</body>
</html>

后台

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace 上传图片并保存在本地.Controllers
{
    public class FirstController : Controller
    {
        public static string toImagePath = @"D:";

        // GET: First
        public ActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public ActionResult addFile(IEnumerable<HttpPostedFileBase> myFile)
        {
            try
            {
                foreach (var file in myFile)
                {
                    if (file != null && file.ContentLength > 0)
                    {
                        if (file.ContentType == "image/jpeg" || file.ContentType == "image/png")
                        {
                            if (int.Parse(file.ContentLength.ToString()) > (1024 * 1024) * 5)
                            {
                                //图片大小不能大于5M;
                                continue;
                            }
                            else
                            {
                                string FileName = DateTime.Now.ToString("yyyyMMddhhmmss");
                                //图片存储路径
                                file.SaveAs(toImagePath + FileName + ".jpg");
                            }
                        }
                    }
                }
                return Redirect("/First/Index");
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}

检查是否要创建上传文件夹

        private bool CreateFolderIfNeeded(string path)
        {
            bool result = true;

            if (!Directory.Exists(path))
            {
                try
                {
　　　　　　　　　　　  Directory.CreateDirectory(path);
                    return result;
                }
                catch (Exception)
                {

                    result = false;
                }

            }
            return result;
        }

　　如何把图片存储到当前项目某个文件夹

string urlPath = Server.MapPath(toImagePath);// 读取到当前虚拟目录的根目录

　　后续会陆续更新其他资料,喜欢请关注哦！

　　我的博客：https://www.cnblogs.com/duhaoran/

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原文地址：https://www.cnblogs.com/duhaoran/p/13645910.html